convert oracle to mysql

necessary to convert each other, the following gives the conversion of several different ways. One, complete in MySQL This way in the MySQL query statement conversion, the advantage is not to occupy PHP parser parsing time, fast, the disadvantage is only used in database query, there are limitations. 1. UNIX timestamp converted to date function: From_unixtime ()

Background: The dnname of a MySQL database in a system adopts the default Latin1 character set. During system upgrade, all data must be converted to UTF-8 format and the target database is newdbname (utf8 is used for database creation) Method 1: Step 1 run the command: mysqldump -- opt-hlocalhost-uroot-P *** -- default-character-set = lantin1 dbname>/usr/local/dbname. SQLStep 2 Change charset = Latin1 of the create table statement in the dbname. SQL f

Background: The dnname of a MySQL database in a system adopts the default Latin1 character set. During system upgrade, all data must be converted to UTF-8 format and the target database is newdbname (utf8 is used for database creation) Method 1: Step 1Execute the command line: mysqldump -- opt-hlocalhost-uroot-P *** -- default-character-set = lantin1 dbname>/usr/local/dbname. SQL Step 2Change charset = Latin1 of the create table statement in the dbnam

conversion to date function: FROM_UNIXTIME () General format: select FROM_UNIXTIME (1156219870 ); 2. convert a date to a UNIX timestamp using the function: UNIX_TIMESTAMP () General format: Select UNIX_TIMESTAMP ('2017-11-04 12:23:00 ′); Example: mysql queries the number of records on the current day: $ SQL = "select * from message Where DATE_FORMAT (FROM_UNIXTIME (chattime), '% Y-% m-% d') = DATE_FOR

Convert () provides a way to convert data between different character sets. The syntax is: CONVERT (expr USING transcoding_name) In MySQL, the conversion code name is the same as the corresponding character set name. Example: SELECT CONVERT (_latin1 ' Müller ' USING UTF8

I worked in a small company, daily work is to maintain the normal operation of the site, rewrite the site of small bugs, as well as with the boss of each "epiphany" creativity, today the boss needs to move the original ASP's website to the newly purchased PHP system, resulting in 2 problems 1. Convert the MSSQL database to MySQL 2. Re-write the contents of the fields in some tables into the New system tabl

pages. It takes a long time for the website ranking and indexing results to be restored, and there is a large amount of data in the original website, manual conversion is not realistic. So now we need a transfer scheme to convert MSSQL into MYSQL. I have found a lot on the internet, either complicated or useless at all (I have chosen several simple methods to try it ), the following method is the simplest

Access can only be used under Windows This deadly feature makes me sick and determined to convert access to MySQL, but I've found a lot of articles on the Internet that have no direct conversion. I heard that you can use ODBC to turn, just try it. 　 First installs the MYSQL,MYODBC, constructs a MySQL empty database,

Tags: MySQL SQL Server conversionFor project reasons, the MySQL database needs to be converted to MMSQL2008. Read the online tutorial, downloaded a lot of software to try, and finally converted to success. Write an article to help someone with the need.1, first have to have a MMSQL2008 database, and MySQL database.2. Then download the official Microsoft Conversio

CONVERT () provides a way to CONVERT data between different character sets. Syntax: CONVERT (expr USING transcoding_name) In MySQL, the conversion code name is the same as the corresponding Character Set Name. Example: Select convert (_ latin1 'müler' USING utf8 ); Inse

Convert () provides a way to convert data between different character sets. The syntax is: CONVERT(expr USING transcoding_name) In MySQL, the conversion code name is the same as the corresponding character set name. Example: SELECT CONVERT(_latin1'Müller' USING utf8); IN

These two days in the company's service-side project, found MySQL more practical 3 functions, here to share.1, Aes_encrypt function, the use of this function is to some of the high security requirements of the data using AES encryption, the syntax is:Aes_encrypt (Str,key), where the first parameter represents the data to encrypt, and the second parameter is the corresponding key.2, Aes_decrypt function, this function is a function corresponding to the

) +------------------------+| CAST (' 3.35 ' as signed) |+------------------------+| 3 |+------------------------+1 row in SetAs in the example above, the varchar is converted to int with cast (a as signed), where a is a varchar-type string.Example 4In SQL Server, the following code demonstrates the result of a DateTime variable that contains only a single date and a simple time when the date stores the hexadecimal store representation.DECLARE @dt datetime--Simple date set @